问题
选择题
The teacher wanted to know __________.
A．when was Linda born
B．if I was interested in math
C．what I will do with the computer
D．how many books have you got
答案
答案：B
know后跟的宾语从句应该用陈述的顺序，故不选AD，本题的主句是过去时，从句应该用过去时的一种，故本题选B。